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ECG > ECG Rhythm Characteristics > Flashcards

ECG Rhythm Characteristics Flashcards

1
Q

Normal Sinus Rhythm

A

60 - 100 bpm
pwave upright
normal PR and QRS

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2
Q

Sinus Brady

A

< 60 bpm

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3
Q

Sinus Tachy

A

> 100 bpm

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4
Q

Ventricular Tachycardia

A

100 - 250 bpm
P wave is not visible
No PR interval
wide QRS

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5
Q

Ventricular Fibrillation

A

rate is unknown
irregular
no p wave, no PR, no QRS
disorganized pattern of electrical activity

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6
Q

Idioventricular Rhythm

A

slow, regular ventricular rhythm
< 50 bpm
no p waves
prolonged QRS

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7
Q

Atrial Fibrillation

A

usually > 100bpm
irregular
no p wave, QRS normal, PR visible

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8
Q

Premature Ventricular Contraction (PVC)

A

rate depends on underlying rhythm
early p waves, visible but depends on timing of PVC (may be hidden)
PR is slower
QRS - sharp and abnormal during PVC

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9
Q

Atrial Flutter

A

75 - 150 bpm
“flutter” P waves
unable to measure PR
QRS is usually normal and upright

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10
Q

Atrial tachycardia

A

form of SVT
narrow complex
tachy
p waves differ

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11
Q

Premature Atrial Complex (PAC)

A

abnormal P wave
normal QRS complex

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12
Q

Junctional Escape Rhythm

A

no preceding p wave
regular QRS
late beats

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13
Q

Premature Junctional Contraction

A

normal QRS
inverted P wave
early beats

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14
Q

First degree AV block

A

60 -100 bpm
prolonged PR interval
QRS normal

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15
Q

Second degree AV block Type I

A

regular atrial rhythm but exceeds ventricular rate
ventricular rhythm is irregular
PR progressively prolongs with each QRS
PR interval shorter after dropped beat

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16
Q

Third degree AV block

A

complete heart block
ventricular rate slower than atrial rate
no relation between P waves and QRS complexes
no constant PR interval

17
Q

Torsades de Pointes

A

“twisting” of QRS

18
Q

Second degree heart block Type II

A

constant PR interval (either normal or prolonged) of all conducted p waves, followed by a sudden failure of a p wave to be conducted to the ventricles

ECG (4 decks)

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